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<a class="jxr_linenumber" name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> com.katesoft.scale4j.common.lang;
<a class="jxr_linenumber" name="2" href="#2">2</a>   
<a class="jxr_linenumber" name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> java.io.ByteArrayInputStream;
<a class="jxr_linenumber" name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> java.io.UnsupportedEncodingException;
<a class="jxr_linenumber" name="5" href="#5">5</a>   
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> * This class represents a sequence of bytes.</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> * @author Santhosh Kumar T</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../com/katesoft/scale4j/common/lang/ByteSequence.html">ByteSequence</a>
<a class="jxr_linenumber" name="12" href="#12">12</a>  {
<a class="jxr_linenumber" name="13" href="#13">13</a>      <strong class="jxr_keyword">private</strong> byte buff[];
<a class="jxr_linenumber" name="14" href="#14">14</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> offset;
<a class="jxr_linenumber" name="15" href="#15">15</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> length;
<a class="jxr_linenumber" name="16" href="#16">16</a>  
<a class="jxr_linenumber" name="17" href="#17">17</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_javadoccomment">     * Allocates a new {@code ByteSequence} so that it represents the sequence of bytes currently contained in the byte array argument. The</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_javadoccomment">     * contents</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <em class="jxr_javadoccomment">     * of the byte array are not copied;</em>
<a class="jxr_linenumber" name="21" href="#21">21</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="22" href="#22">22</a>  <em class="jxr_javadoccomment">     * @param buff value of the bytesequence</em>
<a class="jxr_linenumber" name="23" href="#23">23</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="24" href="#24">24</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/katesoft/scale4j/common/lang/ByteSequence.html">ByteSequence</a>(byte[] buff)
<a class="jxr_linenumber" name="25" href="#25">25</a>      {
<a class="jxr_linenumber" name="26" href="#26">26</a>          set(buff, 0, buff.length);
<a class="jxr_linenumber" name="27" href="#27">27</a>      }
<a class="jxr_linenumber" name="28" href="#28">28</a>  
<a class="jxr_linenumber" name="29" href="#29">29</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="30" href="#30">30</a>  <em class="jxr_javadoccomment">     * Allocates a new {@code ByteSequence} that contains characters from a subarray of the byte array argument. The {@code offset} argument is the</em>
<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">     * index of the first byte of the subarray and the {@code length} argument specifies the length of the subarray. The contents of the subarray</em>
<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment">     * are</em>
<a class="jxr_linenumber" name="33" href="#33">33</a>  <em class="jxr_javadoccomment">     * not copied;</em>
<a class="jxr_linenumber" name="34" href="#34">34</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="35" href="#35">35</a>  <em class="jxr_javadoccomment">     * @param buff   Array that is the source of bytes</em>
<a class="jxr_linenumber" name="36" href="#36">36</a>  <em class="jxr_javadoccomment">     * @param offset The initial offset</em>
<a class="jxr_linenumber" name="37" href="#37">37</a>  <em class="jxr_javadoccomment">     * @param length The length</em>
<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">     * @throws IndexOutOfBoundsException If the {@code offset} and {@code length} arguments index bytes outside the bounds of the {@code buff}</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment">     * array</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/katesoft/scale4j/common/lang/ByteSequence.html">ByteSequence</a>(byte[] buff,
<a class="jxr_linenumber" name="43" href="#43">43</a>                          <strong class="jxr_keyword">int</strong> offset,
<a class="jxr_linenumber" name="44" href="#44">44</a>                          <strong class="jxr_keyword">int</strong> length)
<a class="jxr_linenumber" name="45" href="#45">45</a>      {
<a class="jxr_linenumber" name="46" href="#46">46</a>          set(buff, offset, length);
<a class="jxr_linenumber" name="47" href="#47">47</a>      }
<a class="jxr_linenumber" name="48" href="#48">48</a>  
<a class="jxr_linenumber" name="49" href="#49">49</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment">     * replaces the internal byte buffer with the given byte array.</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment">     * @param buff   Array that is the source of bytes</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment">     * @param offset The initial offset</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment">     * @param length The length</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> set(byte[] buff,
<a class="jxr_linenumber" name="57" href="#57">57</a>                      <strong class="jxr_keyword">int</strong> offset,
<a class="jxr_linenumber" name="58" href="#58">58</a>                      <strong class="jxr_keyword">int</strong> length)
<a class="jxr_linenumber" name="59" href="#59">59</a>      {
<a class="jxr_linenumber" name="60" href="#60">60</a>          <strong class="jxr_keyword">if</strong> (offset &lt; 0) { <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IndexOutOfBoundsException(<span class="jxr_string">"ByteSequence index out of range: "</span> + offset); }
<a class="jxr_linenumber" name="61" href="#61">61</a>          <strong class="jxr_keyword">if</strong> (length &lt; 0) { <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IndexOutOfBoundsException(<span class="jxr_string">"ByteSequence index out of range: "</span> + length); }
<a class="jxr_linenumber" name="62" href="#62">62</a>          <strong class="jxr_keyword">if</strong> (offset &gt; buff.length - length) { <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> StringIndexOutOfBoundsException(<span class="jxr_string">"ByteSequence index out of range: "</span> + (offset + length)); }
<a class="jxr_linenumber" name="63" href="#63">63</a>          <strong class="jxr_keyword">this</strong>.buff = buff;
<a class="jxr_linenumber" name="64" href="#64">64</a>          <strong class="jxr_keyword">this</strong>.offset = offset;
<a class="jxr_linenumber" name="65" href="#65">65</a>          <strong class="jxr_keyword">this</strong>.length = length;
<a class="jxr_linenumber" name="66" href="#66">66</a>      }
<a class="jxr_linenumber" name="67" href="#67">67</a>  
<a class="jxr_linenumber" name="68" href="#68">68</a>      <strong class="jxr_keyword">public</strong> byte byteAt(<strong class="jxr_keyword">int</strong> index)
<a class="jxr_linenumber" name="69" href="#69">69</a>      {
<a class="jxr_linenumber" name="70" href="#70">70</a>          <strong class="jxr_keyword">if</strong> (index &lt; 0 || index &gt;= length) { <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IndexOutOfBoundsException(index + <span class="jxr_string">" is not in range [0, "</span> + length + <span class="jxr_string">")"</span>); }
<a class="jxr_linenumber" name="71" href="#71">71</a>          <strong class="jxr_keyword">else</strong> { <strong class="jxr_keyword">return</strong> buff[offset + index]; }
<a class="jxr_linenumber" name="72" href="#72">72</a>      }
<a class="jxr_linenumber" name="73" href="#73">73</a>  
<a class="jxr_linenumber" name="74" href="#74">74</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> @return the byte buffer used by this instance */</em>
<a class="jxr_linenumber" name="75" href="#75">75</a>      <strong class="jxr_keyword">public</strong> byte[] buffer()
<a class="jxr_linenumber" name="76" href="#76">76</a>      {
<a class="jxr_linenumber" name="77" href="#77">77</a>          <strong class="jxr_keyword">return</strong> buff;
<a class="jxr_linenumber" name="78" href="#78">78</a>      }
<a class="jxr_linenumber" name="79" href="#79">79</a>  
<a class="jxr_linenumber" name="80" href="#80">80</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> @return the index of first byte in byte buffer */</em>
<a class="jxr_linenumber" name="81" href="#81">81</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> offset()
<a class="jxr_linenumber" name="82" href="#82">82</a>      {
<a class="jxr_linenumber" name="83" href="#83">83</a>          <strong class="jxr_keyword">return</strong> offset;
<a class="jxr_linenumber" name="84" href="#84">84</a>      }
<a class="jxr_linenumber" name="85" href="#85">85</a>  
<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> length()
<a class="jxr_linenumber" name="87" href="#87">87</a>      {
<a class="jxr_linenumber" name="88" href="#88">88</a>          <strong class="jxr_keyword">return</strong> length;
<a class="jxr_linenumber" name="89" href="#89">89</a>      }
<a class="jxr_linenumber" name="90" href="#90">90</a>  
<a class="jxr_linenumber" name="91" href="#91">91</a>      <strong class="jxr_keyword">public</strong> byte[] toByteArray(<strong class="jxr_keyword">boolean</strong> clone)
<a class="jxr_linenumber" name="92" href="#92">92</a>      {
<a class="jxr_linenumber" name="93" href="#93">93</a>          <strong class="jxr_keyword">if</strong> (!clone) {
<a class="jxr_linenumber" name="94" href="#94">94</a>              <strong class="jxr_keyword">if</strong> (offset == 0 &amp;&amp; buff.length == length) { <strong class="jxr_keyword">return</strong> buff; }
<a class="jxr_linenumber" name="95" href="#95">95</a>          }
<a class="jxr_linenumber" name="96" href="#96">96</a>          byte array[] = <strong class="jxr_keyword">new</strong> byte[length];
<a class="jxr_linenumber" name="97" href="#97">97</a>          System.arraycopy(buff, offset, array, 0, length);
<a class="jxr_linenumber" name="98" href="#98">98</a>          <strong class="jxr_keyword">return</strong> array;
<a class="jxr_linenumber" name="99" href="#99">99</a>      }
<a class="jxr_linenumber" name="100" href="#100">100</a> 
<a class="jxr_linenumber" name="101" href="#101">101</a>     <strong class="jxr_keyword">public</strong> ByteArrayInputStream asInputStream()
<a class="jxr_linenumber" name="102" href="#102">102</a>     {
<a class="jxr_linenumber" name="103" href="#103">103</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> ByteArrayInputStream(buffer(), offset(), length());
<a class="jxr_linenumber" name="104" href="#104">104</a>     }
<a class="jxr_linenumber" name="105" href="#105">105</a> 
<a class="jxr_linenumber" name="106" href="#106">106</a>     <strong class="jxr_keyword">public</strong> String toString(String charset) <strong class="jxr_keyword">throws</strong> UnsupportedEncodingException
<a class="jxr_linenumber" name="107" href="#107">107</a>     {
<a class="jxr_linenumber" name="108" href="#108">108</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(buff, offset, length, charset);
<a class="jxr_linenumber" name="109" href="#109">109</a>     }
<a class="jxr_linenumber" name="110" href="#110">110</a> 
<a class="jxr_linenumber" name="111" href="#111">111</a>     @Override
<a class="jxr_linenumber" name="112" href="#112">112</a>     <strong class="jxr_keyword">public</strong> String toString()
<a class="jxr_linenumber" name="113" href="#113">113</a>     {
<a class="jxr_linenumber" name="114" href="#114">114</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(buff, offset, length);
<a class="jxr_linenumber" name="115" href="#115">115</a>     }
<a class="jxr_linenumber" name="116" href="#116">116</a> }
</pre>
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